3D printer



FIG. 1 is a front view of a 3D printer embodying the new design;

FIG. 2 is a back view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is another side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a perspective view thereof; and,

FIG. 8 is another perspective view thereof.

In the drawings, the broken lines depict portions of the 3D printer and form no part of the claimed design. 

CLAIM The ornamental design for a 3D printer, as shown and described. 